CVE-2025-53537
Published: 07/23/2025 21:15:26
LibHTP is a security-aware parser for the HTTP protocol and its related bits and pieces. In versions 0.5.50 and below, there is a traffic-induced memory leak that can starve the process of memory, leading to loss of visibility. To workaround this issue, set `suricata.yaml app-layer.protocols.http.libhtp.default-config.lzma-enabled` to false. This issue is fixed in version 0.5.51.
HIGH
CVSS v3: 7.5
CVSS v3: 7.5
Status
| DocFilters Release | Package | State | Justification | Comment |
|---|---|---|---|---|
| 22.3 | lzma (17.01) | Needs Triage | ||
| 22.2 | lzma (17.01) | Needs Triage | ||
| 22.1 | lzma (17.01) | Needs Triage | ||
| 21.11.1 | lzma (17.01) | Needs Triage | ||
| 21.11 | lzma (17.01) | Needs Triage | ||
| 21.8.1 | lzma (17.01) | Needs Triage | ||
| 21.8 | lzma (17.01) | Needs Triage | ||
| 21.5.1 | lzma (17.01) | Needs Triage | ||
| 21.5.0 | lzma (17.01) | Needs Triage | ||
| 21.2.0 | lzma (17.01) | Needs Triage | ||
| 11.4.20 | lzma (17.01) | Needs Triage | ||
| 11.4.19.3667 | lzma (17.01) | Needs Triage | ||
| 11.4.18.3599 | lzma (17.01) | Needs Triage | ||
| 11.4.17 | lzma (17.01) | Needs Triage | ||
| 11.4.16.3445 | lzma (17.01) | Needs Triage | ||
| 11.4.15.3368 | lzma (17.01) | Needs Triage | ||
| 11.4.14.3263 | lzma (17.01) | Needs Triage | ||
| 11.4.13.3179 | lzma (17.01) | Needs Triage | ||
| 11.4.12.3054 | lzma (17.01) | Needs Triage | ||
| 11.4.11.3040 | lzma (17.01) | Needs Triage | ||
| 11.4.11.2990 | lzma (17.01) | Needs Triage | ||
| 11.4.10.2934 | lzma (17.01) | Needs Triage | ||
| 11.4.9.2878 | lzma (17.01) | Needs Triage | ||
| 11.4.8.2822 | lzma (17.01) | Needs Triage |
Severity score breakdown
Attack Complexity
LOW
Attack Vector
NETWORK
Availability Impact
HIGH
Base Score
7.5
Base Severity
HIGH
Confidentiality Impact
NONE
Integrity Impact
NONE
Privileges Required
NONE
Scope
UNCHANGED
User Interaction
NONE
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version
3.1